Waste bin



FIG. 1 is a front elevational view of a waste bin showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a right side elevational view thereof, with the left sidebeing a mirror image thereof; and,

FIG. 4 is a top front left side perspective view thereof.

The ornamental design for a waste bin, as shown and described.